{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "The number of greater than or equal to 15 - dB increases in auditory threshold as a proportion of total greater than or equal to 15 - dB changes ( increases and decreases ) was significantly lower in netilmicin and piperacillin - vs tobramycin and piperacillin - treated patients ( 18 of 78 vs 67 of 115 ) ."}
{"Disease": [], "Chemical": ["netilmicin", "piperacillin", "tobramycin"]}